D. J. McKay, N. P. F. McKay, M. H. Wieringa
VRI (the Virtual Radio Interferometer) is a Java applet that simulates
how radio interferometers work. If you are not familiar with this
field, then we suggest that you browse the VRI
Guide, which describes the concepts and basic operation of this
aspect of astronomical study.
The applet simulates how the placement of the antennas affects the
uv-coverage of a given array and illustrates the fourier
transform relation ship between the accumulated radio visibilities and
the resultant image.
This applet is focussed on four "panels" which represent (clockwise
from top right), the placement of the antennas on the ground, the
uv-coverage that would result from that placement, the fourier
transform of the image (which may be masked by the uv-coverage) and
the image itself (either initial or measured). Various widgets around
the outside of these panels allow the control of various parameters.
Further information
- V.R.I. - the Virtual Radio Interferometer
applet itself
- VRI Guide - general description of operation
and concepts for newcomers to radio interferometry
- VRI Documentation - technical notes on running the
Java applet
Comments?
We would greatly appreciate any comments you may have on this
documentation, or the VRI java applet.
Please e-mail them to Derek McKay
(dmckay@eso.org).
Original: dmckay@atnf.csiro.au (12-May-1997)
Modified: dmckay@eso.org (07-Apr-2003)
Disclaimer: These web pages do not necessarily reflect the views or
policies of ESO.